pillar from hell

I put a lot of hot obsidian and igneous rock in one cell. Then I drop 450 kg of lead. After a while lead become liquid. Think there was granite, it transform into magma and immediately become solid as 3 tons of igneous rock. It was ok for me. However, I quit from game, and after I load it, I saw long-long pillar from hell dimension. 24 tons in each cell, 800C each cell. It pierce my base from oil biome, and stop nearby printing pod. I really hope I have 10-turns save file without it, because it would be very difficult restore my base.

This column not exists on preview, and when I load game it shows everything is normal temperature

UPD

Everything fine on 846 cycle, it appear on 847.

Volcano Cycle 846.sav

Volcano Cycle 847.sav

Volcano Cycle 850.sav